ZDI-20-957: Advantech WebAccess/HMI Designer PM3 File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Advantech WebAccess/HMI Designer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PM3 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Advantech WebAccess/HMI Designer |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-20-957?
The severity of ZDI-20-957 is classified as high due to its potential for information disclosure by remote attackers.
How do I fix ZDI-20-957?
To fix ZDI-20-957, update the Advantech WebAccess/HMI Designer software to the latest version that addresses this vulnerability.
What types of attacks exploit ZDI-20-957?
ZDI-20-957 can be exploited through user interaction, requiring the target to visit a malicious page or open a malicious file.
Who is affected by ZDI-20-957?
Only installations of Advantech WebAccess/HMI Designer are affected by the ZDI-20-957 vulnerability.
What kind of information can be disclosed by exploiting ZDI-20-957?
Exploitation of ZDI-20-957 may lead to the disclosure of sensitive information from affected installations.
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- alias/CVE-2020-16211
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